Air turbine starters and systems for gas turbine engines

A system comprising:

• an air turbine starter comprising:
• a housing defining an interior and an exterior;
• an electric motor having an electric machine drive shaft, wherein the electric motor is located at the interior of the housing, and wherein the electric motor includes an outer surface spaced from an inner surface of the housing;
• a turbine member located axially aft of the electric motor having a plurality of blades, wherein the turbine member is coupled to a turbine shaft;
• a clutch assembly selectively coupling the electric machine drive shaft and the turbine shaft;
• and
• a primary air flow path coupling an inlet and an outlet, wherein the primary air flow path, the inlet, and the outlet are defined by at least a portion of the housing, and wherein at least a portion of the primary air flow path is further defined by the outer surface of the electric motor;
• a valve selectively fluidly coupled to the inlet;
• and
• a controller operatively coupled to the valve.

A turbine engine comprising:

• an engine core having a compression section, a combustion section, and a turbine in serial flow arrangement, the engine core having an engine drive shaft;
• and
• a system comprising:
• an air turbine starter, the air turbine starter comprising:
• a housing defining an interior;
• a turbine member located within the interior and having a turbine shaft and a plurality of blades coupled to the turbine shaft;
• an electric motor within the interior and having an electric machine drive shaft;
• a clutch assembly within the interior and selectively coupling the turbine shaft to the electric machine drive shaft;
• and
• a primary air flow path coupling an inlet and an outlet, wherein the primary air flow path, the inlet, and the outlet are defined by at least a portion of the housing, and wherein at least a portion of the primary air flow path is further defined by an outer surface of the electric motor;
• a valve selectively fluidly coupled to the inlet;
• and
• a controller operatively coupled to the valve.